\begin{tikzpicture}[scale=0.9]
    \tkzDefPoints{0/0/B,  3/0/C,  2/2/A,  4.2/0/D, 4/2/E}

    \tkzDrawSegments(B,D  B,A  A,C  C,E)
    \tkzMarkAngle[size=0.6](D,C,E)    \tkzLabelAngle[pos=0.9](D,C,E){$1$}
    \tkzMarkAngle[size=0.4](C,B,A)    \tkzLabelAngle[pos=0.7](C,B,A){$2$}
    \tkzMarkAngle[size=0.4](E,C,A)    \tkzLabelAngle[pos=0.7](E,C,A){$3$}
    \tkzMarkAngle[size=0.4](B,A,C)    \tkzLabelAngle[pos=0.7](B,A,C){$4$}

    \tkzLabelPoints[above](A)
    \tkzLabelPoints[left](B)
    \tkzLabelPoints[right](E)
    \tkzLabelPoints[below](C,D)
\end{tikzpicture}

